First wireless communication device and second wireless communication device

Abstract

According to the present invention, a first wireless communication device in a wireless communication system comprises a control unit that controls communication with a second wireless communication device having a survival time in which data transmission is boosted, can control the wireless measurement performed by the second wireless communication device in an interval of the survival time by using information relating to the wireless measurement included in a control signal, and can receive the data transmitted by performing priority control between the data and other data, in the second wireless communication device.

Description

[Technical Field]

[0001] The present invention relates to a first wireless communication device and a second wireless communication device. [Background technology]

[0002] 2. Description of the Related Art In recent years, wireless communication systems have come into use, including in facilities such as factories.

[0003] In a factory, for example, manufacturing machines and equipment are wirelessly connected to a control and monitoring system, and data and control signals are sent and received using the Internet of Things (IoT). The IoT used in factories is sometimes called the Industrial IoT (IIoT).

[0004] In a factory, if a control signal is not received, for example, a serious error may occur, such as a delay or a halt in the factory's production line, so the IIoT may require stricter delay and error conditions than the normal IoT. Therefore, in the IIoT, assuming that certain conditions are met, communication devices transition to a state (hereinafter sometimes referred to as the Survival Time State (STS)) in which data must arrive within the packet arrival deadline (hereinafter sometimes referred to as the survival time) that the system can tolerate, thereby improving the probability of data arrival.

[0005] Technologies related to IIoT are described in the following prior art documents. [Prior art documents] [Non-patent literature]

[0006] [Non-patent document 01] 3GPP TS36.133 LTE-A Radio Measurement Specification [Non-patent document 02] 3GPP TS36.300 LTE-A Overview Specifications [Non-patent document 03] 3GPP TS36.211 LTE-A PHY Channel Specification [Non-patent document 04] 3GPP TS36.212 LTE-A PHY Coding Specification [Non-patent document 05] 3GPP TS36.213 LTE-A PHY Procedure Specification [Non-patent document 06] 3GPP TS36.214 LTE-A PHY Measurement Specification [Non-patent document 07] 3GPP TS36.321 LTE-A MAC Specification [Non-patent document 08] 3GPP TS36.322 LTE-A RLC Specification [Non-patent document 09] 3GPP TS36.323 LTE-A PDCP Specification [Non-Patent Document 10] 3GPP TS36.331 LTE-A RRC Specification [Non-Patent Document 11] 3GPP TS36.413 LTE-A S1 Specification [Non-Patent Document 12] 3GPP TS36.423 LTE-A X2 Specification [Non-Patent Document 13] 3GPP TS36.425 LTE-A Xn Specification [Non-Patent Document 14] 3GPP TR36.912 NR Radio Access Overview [Non-Patent Document 15] 3GPP TR38.913 NR Requirements [Non-Patent Document 16] 3GPP TR38.913 NR Requirements [Non-Patent Document 17] 3GPP TR38.801 NR Network Architecture Overview [Non-Patent Document 18] 3GPP TR38.802 NR PHY Overview [Non-Patent Document 19] 3GPP TR38.803 NR RF Overview [Non-Patent Document 20] 3GPP TR38.804 NR L2 Overview [Non-Patent Document 21] 3GPP TR38.900 NR High Frequency Overview [Non-Patent Document 22] 3GPP TS38.300 NR Overview Specifications [Non-Patent Document 23] 3GPP TS37.340 NR Multiple Access Overview Specification [Non-Patent Document 24] 3GPP TS38.201 NR PHY Specification Overview [Non-Patent Document 25] 3GPP TS38.202 NR PHY Service Overview Specification [Non-Patent Document 26] 3GPP TS38.211 NR PHY Channel Specification [Non-Patent Document 27] 3GPP TS38.212 NR PHY Coding Specification [Non-patent document 28] 3GPP TS38.213 NR PHY Data Channel Procedure Specification [Non-Patent Document 29] 3GPP TS38.214 NR PHY Control Channel Procedure Specification [Non-Patent Document 30] 3GPP TS38.215 NR PHY Measurement Specification [Non-Patent Document 31] 3GPP TS38.321 NR MAC Specification [Non-Patent Document 32] 3GPP TS38.322 NR RLC Specification [Non-Patent Document 33] 3GPP TS38.323 NR PDCP Specification [Non-Patent Document 34] 3GPP TS37.324 NR SDAP Specification [Non-Patent Document 35] 3GPP TS38.331 NR RRC Specification [Non-Patent Document 36] 3GPP TS38.401 NR Architecture Overview Specification [Non-Patent Document 37] 3GPP TS38.410 NR Core Network Overview Specification [Non-Patent Document 38] 3GPP TS38.413 NR Core Network AP Specification [Non-Patent Document 39] 3GPP TS38.420 NR Xn Interface Overview Specification [Non-Patent Document 40] 3GPP TS38.423 NR XnAP Specification [Non-Patent Document 41] 3GPP TS38.470 NR F1 Interface Overview Specification [Non-Patent Document 42] 3GPP TS38.473 NR F1AP Specification [Non-Patent Document 43] 3GPP TSG RAN meeting #92e Electronic Meeting, June 14 - 18, 2021 RP-211566 Summary of the Invention [Problem to be solved by the invention]

[0007] In the survival time state, the communication device may set a measurement interval for the radio section (for example, MG (Measurement Gap)) and perform radio measurement. MG indicates the measurement of the radio signal reception quality from the cell currently in communication, as well as the radio signal reception quality of a band that has the same serving frequency but is different from the current band, or the radio signal reception quality from another frequency band other than the serving frequency or a different RAT, or indicates a measurement period or control. If the radio communication circuit used for MG and the radio communication circuit used for communication are the same, the communication device cannot transmit or receive data to or from the base station device 200 with which it is currently communicating during MG.

[0008] However, the handling of MG in survival time situations is currently under discussion and has not yet been decided.

[0009] Therefore, one disclosure provides a first wireless communication device and a second wireless communication device that prevent data transmission by implementing MG from becoming impossible in an IIoT survival time state. [Means for solving the problem]

[0010] A first wireless communication device in a wireless communication system controls communication with a second wireless communication device having a survival time in which data transmission is boosted, and can control wireless measurements performed by the second wireless communication device during the survival time period using information regarding the implementation of wireless measurements included in a control signal, and has a control unit that can receive the data transmitted in the second wireless communication device after priority control is performed between the data and other data. [Effects of the Invention]

[0011] One disclosure prevents data transmission by MG implementation from becoming impossible in an IIoT survival time state. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram showing an example of the configuration of a wireless communication system 3. As shown in FIG. [Figure 2] FIG. 2 is a diagram showing an example of the configuration of the wireless communication system 10. As shown in FIG. [Figure 3] FIG. 3 illustrates an example of the configuration of the base station device 200. As shown in FIG. [Figure 4] FIG. 4 is a diagram illustrating an example of the configuration of the terminal device 100. As shown in FIG. [Figure 5] FIG. 5 is a diagram showing an example of MG execution in the survival time state. [Figure 6] FIG. 6 is a diagram showing an example of GapConfig that constitutes MeasGapConfig. [Figure 7]FIG. 7 is a diagram illustrating an example of MG control. [Figure 8] FIG. 8 is a diagram illustrating an example of MG control. [Figure 9] FIG. 9 is a diagram illustrating an example of MG control. [Figure 10] FIG. 10 is a diagram showing an example of new data generation in the survival time state. [Figure 11] FIG. 11 is a diagram showing an example of Logical Channel Prioritization after the change. [Figure 12] FIG. 12 is a diagram illustrating an example of a UL RRC message. [Figure 13] FIG. 13 is a diagram illustrating an example of a UL RRC message. [Figure 14] FIG. 14 is a diagram illustrating an example of a layer 2 architecture. DETAILED DESCRIPTION OF THE INVENTION

[0013] [First embodiment] A first embodiment will be described.

[0014] 1 is a diagram showing an example of the configuration of a wireless communication system 3. The wireless communication system 3 includes a first wireless communication device 1 and a second wireless communication device 2. The first wireless communication device and the second wireless communication device perform wireless communication (S3).

[0015] The first wireless communication device 1 is a communication device that performs wireless communication. The first wireless communication device 1 has a control unit 1-1. The control unit 1-1 is constructed, for example, by a processor included in the first wireless communication device 1 executing a program stored in the first wireless communication device 1.

[0016] The control unit 1-1 controls the radio measurement performed by the second wireless communication device 2. The control unit 1-1 controls the radio measurement of the second wireless communication device by, for example, including information on the radio measurement during the survival time state (survival time period) in a control signal and transmitting the signal (S1).

[0017] Furthermore, the control unit 1-1 receives the data that has been controlled and transmitted by the second wireless communication device 2 on a priority basis (S2).

[0018] The second wireless communication device 2 is a communication device that performs wireless communication corresponding to survival time. The second wireless communication device 2 has a second control unit 2-1. The second control unit 2-1 is constructed, for example, by a processor included in the second wireless communication device 2 executing a program stored in the second wireless communication device 2.

[0019] The second control unit 2-1 performs the radio measurement S4 in accordance with the information on the radio measurement included in the control signal. The second control unit 2-1 performs control such as lowering the priority of the radio measurement S4 (canceling the implementation) and raising the priority of data transmission. The second control unit 2-1 can also shift the timing of the radio measurement S4 to a later time (later on the time axis), for example. In this specification, the meaning of "cancellation" is treated as synonymous with "lowering the priority of implementation."

[0020] In addition, when data other than the data to be retransmitted occurs during the survival time, the second control unit 2-1 performs priority control S5 to determine which data should be transmitted with priority, determines the transmission order of the data (whether or not it can be transmitted), and transmits the data (S2).

[0021] [Second embodiment] A second embodiment will be described.

[0022] <About the wireless communication system 10> 2 is a diagram showing an example of the configuration of a wireless communication system 10. The wireless communication system 10 includes a base station device 200 and a terminal device 100. The wireless communication system 10 is, for example, a wireless communication system installed within a system. For example, the wireless communication system 10 is a wireless communication system having an IIoT function.

[0023] The terminal device 100 is a communication device attached to equipment (device) within the system. The base station device 200 is a communication device installed within the system.

[0024] The base station device 200 supports, for example, various communication generations (for example, 5G and Beyond 5G). The base station device 200 may be configured as a single device or may be configured as multiple devices such as a CU (Central Unit) and a DU (Distributed Unit).

[0025] In the wireless communication system 10, the base station device 200 and the terminal device 100 communicate using the IIoT. The terminal device 100 and the base station device 200 are assumed to support survival time.

[0026] <Configuration Example of Base Station Device 200> 3 is a diagram illustrating an example of the configuration of the base station device 200. The base station device 200 includes a CPU (Central Processing Unit) 210, a storage 220, a memory 230, a wireless communication circuit 250, and an antenna 251.

[0027] The storage 220 is an auxiliary storage device that stores programs and data, such as a flash memory, a hard disk drive (HDD), or a solid state drive (SSD). The storage 220 stores a communication program 221 and a control program 222.

[0028] The memory 230 is an area into which the programs stored in the storage 220 are loaded. The memory 230 may also be used as an area in which the programs store data.

[0029] The wireless communication circuit 250 is a device that performs wireless communication with the terminal device 100. The wireless communication circuit 250 has an antenna 251. The antenna 251 includes, for example, a directional antenna that can control the direction of transmission and reception of radio waves.

[0030] The CPU 210 is a processor that loads a program stored in the storage 220 into the memory 230, executes the loaded program, configures each unit, and realizes each process.

[0031] The CPU 210 executes the communication program 221 to establish a communication unit and perform communication processing. The communication processing is processing for performing wireless communication with the terminal device 100. In the communication processing, the base station device 200 establishes a wireless connection with the terminal device 100, transmits data and control signals to the terminal device 100, and receives data from the terminal device 100.

[0032] The CPU 210 executes the control program 222 to construct a control unit and perform control processing. The control processing is processing for controlling wireless communication with the terminal device 100. In the control processing, the base station device 200 controls the implementation of MG performed by the terminal device 100 (instructing whether to implement it or not, and the implementation timing, etc.). Furthermore, the base station device 200 performs priority control (control of transmission priority, whether to allow or disallow transmission, etc.) when data other than retransmitted data occurs to the terminal device 100 in the survival time state, and receives data that has been prioritized and transmitted.

[0033] The CPU 210 executes the MG control module 2221 of the control program 222 to establish a control unit and perform MG control processing. The MG control processing is processing for controlling whether or not MG is executed in the terminal device 100. In the MG control processing, the base station device 200 does not execute MG, for example, in the survival time state. Furthermore, in the MG control processing, the base station device 200 can (has the capability of) shifting MG backward in time (backward on the time axis), for example, in the survival time state.

[0034] <Configuration example of terminal device 100> 4 is a diagram illustrating an example of the configuration of the terminal device 100. The terminal device 100 includes a CPU 110, a storage 120, a memory 130, a wireless communication circuit 150, and an antenna 151.

[0035] The storage 120 is an auxiliary storage device such as a flash memory, HDD, or SSD that stores programs and data. The storage 120 stores a terminal communication program 121 and a terminal control program 122.

[0036] The memory 130 is an area into which the programs stored in the storage 120 are loaded. The memory 130 may also be used as an area in which the programs store data.

[0037] The wireless communication circuit 150 is a device that performs wireless communication with the base station device 200. The wireless communication circuit 150 has an antenna 151. The antenna 151 includes, for example, a directional antenna that can control the direction of transmission and reception of radio waves.

[0038] The CPU 110 is a processor that loads a program stored in the storage 120 into the memory 130, executes the loaded program, configures each unit, and realizes each process.

[0039] The CPU 110 establishes a second communication unit and performs terminal communication processing by executing the terminal communication program 121. The terminal communication processing is processing for performing wireless communication with the base station device 200.

[0040] The CPU 110 executes the terminal control program 122 to establish a second control unit and perform terminal control processing. The terminal control processing is processing in which communication is controlled by the base station device 200, for example.

[0041] The CPU 110 executes the MG module 1221 of the terminal control program 122 to construct a second control unit and perform MG processing. The MG processing is processing that executes (or does not execute) MG in accordance with an instruction from the base station device 200. For example, in the MG processing, the terminal device 100 does not execute (or postpones or puts on hold) MG in accordance with an instruction from the base station device 200 during the survival time state. Also, in the MG processing, the terminal device 100 executes MG after a predetermined time (shifts the execution time of MG) in accordance with an instruction from the base station device 200 during the survival time state.

[0042] The CPU 110 executes the priority control module 1222 of the terminal control program 122 to construct a second control unit and perform priority control processing. The priority control processing is processing for determining the priority order of the retransmitted data and the new data when new data other than retransmitted data occurs in the terminal device 100. For example, if the new data has a large impact on the system, the terminal device 100 will transmit the new data with priority.

[0043] <Survival Time State> When the terminal device 100 recognizes that data transmission has failed N times (N is an integer equal to or greater than 1), it transitions to a survival time state. The survival time state (STS) is a state in which data transmission is boosted. Boosting data transmission is a process that improves the probability of successful retransmission of data that has failed to be transmitted, and for example, increases the number of retransmissions and strengthens radio resources for retransmission. The terminal device 100 recognizes that transmission has failed by receiving, for example, a NACK (Non Acknowledgement). For convenience, the term "NACK" is used here, but more specifically, it is a control signal of the physical layer (L1). In 5G, it corresponds to a UL grant that prompts retransmission. However, it is not limited to this. Any control signal for transitioning to survival mode will do.

[0044] The survival time state may end after a predetermined time, for example. Alternatively, the survival time state may end depending on the number of data transmissions or the number of successful transmissions. Furthermore, the survival time state may end when the radio conditions become better than a predetermined level. Alternatively, the survival time state may end in response to a control signal from the base station. The control signal may be, for example, a signal that controls the number of legs of PDCP duplication or the activation and deactivation states.

[0045] <MG control in survival time state> Figure 5 is a diagram showing an example of MG execution in the survival time state. In Figure 5, black squares indicate the starting points of transmission cycles. The transmission cycle is, for example, 2.0 ms, and the MG period (the period during which MG is executed) is 1.5 ms. The transmission cycle is, for example, assumed to be the same value as the survival time.

[0046] 5, the terminal device 100 may perform MG in the survival time state. Since the terminal device 100 is performing radio measurement in MG, it cannot transmit data to the base station device 200 with which it is communicating (S10).

[0047] Therefore, the terminal device 100 controls the implementation of MG in the survival time state. For example, the terminal device 100 controls whether to implement MG in the survival time state or whether to implement (shift) MG at a different timing.

[0048] The control of MG is set in, for example, MeasGapConfig. For example, when MG is canceled without performing a shift, shiftMeas-r17 is set to empty (false: for example, 0). When a shift is performed, shiftMeas-r17 is set to true (for example, 1). The setting of MeasGapConfig is performed by, for example, the base station device 200. The terminal device 100 cancels or shifts MG in accordance with the setting.

[0049] If MG is not implemented, for example, an RF system for Inter-BWP / Inter-F / Inter-RAT will be prepared separately.

[0050] Fig. 6 is a diagram showing an example of GapConfig that constitutes MeasGapConfig, in which the underlined parts indicate examples of additional elements.

[0051] For example, an information element "gapSurvivalTimeState-r17" is added to GapConfig, and information related to the control of the MG in the survival time mode is set. Note that the information element names, setting values, and conditions are merely examples and are not limited to these.

[0052] FIG. 7 is a diagram showing an example of MG control. MG is a process for measuring neighboring cells, so it measures the SSBs (Synchronization Signal Blocks) of neighboring cells. A measurement period using SSBs is called, for example, an SMTC (SSB-based Measurement Timing Configuration) window period. In FIG. 7, period T20 indicates the SMTC window period. Also in FIG. 7, period T21 indicates the MG execution cycle (MG cycle). The SSB transmission unit is four (dotted squares).

[0053] 7, the terminal device 100 encounters a measurement timing for MG20 (SSB transmission G20) during the survival time state. Therefore, the terminal device 100 shifts the implementation timing of MG20 (S21) and implements MG at the timing of MG21. The timing of MG21 is the timing of SSB transmission G21 within the same SMTC window period as MG20 before the shift. In this way, the terminal device 100 shifts the implementation timing of MG to, for example, the SSB transmission timing within the same SMTC window period.

[0054] Fig. 8 is a diagram showing an example of MG control. In Fig. 8, periods T30 and T31 indicate SMTC window periods. Also in Fig. 8, periods T32 and T33 indicate MG execution cycles. Also, the transmission unit of SSB is eight.

[0055] In FIG. 8, the terminal device 100 encounters a measurement timing for MG30 (SSB transmission G30) during the survival time state. Therefore, the terminal device 100 shifts the implementation timing of MG30 (S31) and implements MG at the timing of MG31. The timing of MG31 is the latter half of the timing of SSB transmission G30, which is the same as that of MG30 before the shift. In this way, the terminal device 100 shifts the implementation timing of MG, for example, to the latter half of a series of SSB transmissions. Note that the latter half means later than the timing of MG before the shift, and does not necessarily have to be later than halfway through the series of SSB transmissions. Furthermore, the condition for shifting MG to a destination may be that the survival time state has ended (transition to the normal state).

[0056] Fig. 9 is a diagram showing an example of MG control. In Fig. 9, periods T40 and T41 indicate SMTC window periods. Also in Fig. 9, periods T42 and T43 indicate MG execution cycles. Also, the transmission unit of SSB is eight.

[0057] In Fig. 9, the terminal device 100 encounters a measurement timing for MG40 (SSB transmission G40) during the survival time state. However, the survival time state in Fig. 9 continues longer than the survival time state in Fig. 8. Therefore, the terminal device 100 cannot shift MG40 to the latter half of SSB transmission G40.

[0058] Therefore, the terminal device 100 cancels MG 40 and does not perform MG until the timing to perform the next MG 41 (S41). In this way, the terminal device 100 cancels the performance of MG when, for example, the survival time state continues for a long time and the timing to perform MG cannot be shifted to the latter half of the series of SSB transmissions.

[0059] <New data generated during survival time> 10 is a diagram showing an example of new data generation in the survival time state. For example, the terminal device 100 fails to transmit data and transitions to the survival time state. In the survival time state, new data that is not retransmitted data is generated in the terminal device 100 (S50). In the wireless communication system 10, it is not determined whether the terminal device 100 in the survival time state will transmit the retransmitted data or the new data with priority.

[0060] The terminal device 100 may generate an RRC signal that may be data with a higher transmission priority than IIOT data. Examples of RRC signals include the following:

[0061] Periodic reports: MeasurementReport / SRB1,3 Failure information: FailureInformation / SRB1,3, MCGFailureInformation / SRB1 Assistance information system: UEAssistanceInformation / SRB1,3 Control information system: ULInformationTransfer / SRB1,2, ULInformationTransferIRAT / SRB1, ULInformationTransferMRDC / SRB1,3

[0062] For example, in the case of control information data, such as control commands for equipment in a factory, failure to send (delay in sending) can have a significant impact on the system. For this reason, control information data is often given high priority.

[0063] Furthermore, even if the transmission of periodic report data is delayed, it is unlikely to have an immediate serious impact on the system, so periodic report data may be given low priority.

[0064] As described above, the priority differs depending on the content of the RRC signal. Therefore, it is necessary to be able to rank this data relative to retransmission data.

[0065] For example, the priority of MAC CE is set higher than that of retransmission data (UL data PUSCH). However, since the size of MAC CE is relatively small, base station apparatus 200 may allocate radio resources assuming maximum size transmission.

[0066] Also, for example, the priority of the retransmission data and the MG Report are set to be the same (on the same level). Since the size of the MG Report is relatively large, if the base station device 200 pre-allocates radio resources assuming maximum size transmission, the efficiency of radio resource use will decrease, and therefore such pre-allocation is not appropriate.

[0067] For example, a change is made to Logical Channel Prioritization (LCP) described in TS38.321, which is a priority standard. Fig. 11 is a diagram showing an example of Logical Channel Prioritization after the change. In Fig. 11, the underlined parts indicate the added specifications. Note that the names of the added information elements in Fig. 11 are merely examples and are not limited to these. Also, in Fig. 11, the locations (lines) where the information elements are added are merely examples and are not limited to these.

[0068] [Other embodiments] The requirements described in the first, second, and other embodiments may be combined with each other, and may be used in different ways depending on, for example, wireless conditions, system requirements, etc.

[0069] The requirements described in the first and second embodiments and other embodiments are defined as standard specifications in 3GPP, for example, as follows:

[0070] Fig. 12 is a diagram showing an example of a UL RRC message. This specification is described in, for example, TS38.331. In the wireless communication system 10, PUDCH data (retransmission data, etc.) in the survival time state is given a higher priority than the message shown in Fig. 12. The UL RRC message may not have a transmission delay requirement. On the other hand, the retransmission data has a survival time requirement, so the retransmission data is given a higher priority.

[0071] Fig. 13 is a diagram showing an example of a UL RRC message. This provision is described in, for example, TS38.331. In the wireless communication system 10, PUDCH data (retransmission data, etc.) in the survival time state is given a lower priority than any of the underlined messages in Fig. 13. The underlined message is a control signal that notifies the occurrence of some kind of problem (or is transmitted when a problem occurs), and it is preferable to notify the base station device 200 as soon as possible. Alternatively, the underlined message may be set to a higher priority, and the retransmission message may be set to a lower priority than the underlined message.

[0072] FIG. 14 is a diagram showing an example of Layer 2 architecture. The underlined messages in FIG. 13 use stack ST3. Other RRC messages use stack ST1. Retransmission data (UL data PUSCH) uses stack ST2. When an RRC message occurs, the terminal device 100 generates a scheduling request, compares the priority with that of the retransmission UL data PUSCH, and transmits the one with the higher priority. For example, a parameter called LCH priority may be used as the priority. That is, as a setting of the priority of retransmission data in the survival time state, there is a possibility of changing the LCH (Logical Channel) priority of the data to be retransmitted. [Explanation of symbols]

[0073] 1: First wireless communication device 1-1: Control section 2: Second wireless communication device 2-1: Second control section 3: Wireless communication system 10: Wireless communication system 100: Terminal device 110:CPU 120: Storage 121: Terminal communication program 122: Terminal control program 1221:MG module 1222: Priority control module 130: Memory 150: Wireless communication circuit 151: Antenna 200:Base station equipment 210:CPU 220: Storage 221: Communication Program 222: Control program 2221:MG control module 230: Memory 250: Wireless communication circuit 251: Antenna

Claims

1. A first wireless communication device in a wireless communication system, a control unit that controls communication with a second wireless communication device in a survival time state, that controls wireless measurements performed by the second wireless communication device during a period in which the second wireless communication device is in the survival time state using information regarding the implementation of wireless measurements included in a control signal, and that is capable of receiving the data transmitted from the second wireless communication device after priority control between data and other data is performed; The control unit controls the wireless measurement not to be performed in the section. A first wireless communication device.

2. The information regarding the execution of the radio measurement includes canceling the radio measurement. The first wireless communication device according to claim 1 .

3. The information regarding the execution of the radio measurement includes shifting the timing of the radio measurement backward in time. The first wireless communication device according to claim 1 .

4. In the shift, a second timing at which the radio measurement is performed after the shift is a timing that is later on a time axis than the first timing within an SMTC (SSB-based Measurement Timing Configuration) window that includes the first timing, which is the timing at which the radio measurement is performed before the shift. The first wireless communication device according to claim 3 .

5. In the shift, a second timing at which the radio measurement is performed after the shift is a timing later on a time axis than the first timing in a series of SSB transmissions including the first timing, which is the timing at which the radio measurement is performed before the shift. The first wireless communication device according to claim 3 .

6. The control unit cancels the radio measurement if the section does not end at a timing later on a time axis than the first timing of the series of SSB transmissions. The first wireless communication device according to claim 5 .

7. In the survival time state, transmission of the data is boosted. The first wireless communication device according to claim 1 .

8. A second wireless communication device in a wireless communication system, a second control unit that has a survival time state, performs radio measurement in accordance with information regarding the execution of radio measurement included in a control signal during a period in the survival time state, and transmits the data in accordance with priority control between the data and other data; The second control unit controls so as not to perform the radio measurement in the section. A second wireless communication device.

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